OVERVIEW
   ICM7115 is a CMOS single chip telephone integrated circuit that meets multiple PTT requirements, allowing phone manufacturers to have single board design for various countries. This reduces inventory and simplify manufacturing processes.

FEATURES
• Includes dialer, speech, and ringer
   circuit replacing two or more ICs.
• Single board design meets multiple
   PTT requirements.
• Support volume control.
• Adjustable flash duration.
• 32-digit last number redial.
• Selectable tone/pulse dialing.
• 13 to 70Hz ring frequency detection.
• Operating range from 15 to 100mA.
• Compatible with ICM7101D.